I Don't Want to Remember

Something important,
Something simple,
something basic,
something different,
something BIG,
something with great value,
something that may change a life of a loved one or a great enemy,
something not to be kept for yourself,
something not to be taken as a joke,
something you can't change you're mind about once you've agreed, something you can't turn your back on.
What do you think of when you hear the word promises?